4. Liquid purification or separation
  5. Processes
  6. Separating

Roger Haag

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Apparatus for treating biological sludge

Liquid purification or separation – Constituent mixture variation responsive
Reexamination Certificate

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Precast sludge tank roof panel with removable grate

Building units and construction elements – Architectural stock material – Panel – tile or applique or floor – wall – roof – etc.
Patent

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Sludge scraper apparatus

Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent

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Sludge scraper apparatus

Liquid purification or separation – Processes – Separating
Patent

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Profile ID: LFUS-PAI-P-1163860

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